Skin cover for a massager



FIG. 1 is a front view of a skin cover for a massager showing my new design;

FIG. 2 is a back view thereof; and,

FIG. 3 is a top view thereof.

The broken lines in the drawings are for the purpose of illustrating environmental structure which form no part of the claimed design. 

CLAIM I claim the ornamental design for a skin cover for a massager, as shown and described. 